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30381903803 = 3112725313049
BaseRepresentation
bin11100010010111001…
…110000111110111011
32220102100220121220102
4130102321300332323
5444210231410203
621542433350015
72123614631006
oct342271607673
986370817812
1030381903803
111198087a009
125a7aa0830b
132b3253b994
14168305c53d
15bcc415888
hex712e70fbb

30381903803 has 16 divisors (see below), whose sum is σ = 31631769600. Its totient is φ = 29149243200.

The previous prime is 30381903707. The next prime is 30381903823. The reversal of 30381903803 is 30830918303.

It is not a de Polignac number, because 30381903803 - 218 = 30381641659 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30381903823) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9963023 + ... + 9966071.

It is an arithmetic number, because the mean of its divisors is an integer number (1976985600).

Almost surely, 230381903803 is an apocalyptic number.

30381903803 is a deficient number, since it is larger than the sum of its proper divisors (1249865797).

30381903803 is a wasteful number, since it uses less digits than its factorization.

30381903803 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5738.

The product of its (nonzero) digits is 46656, while the sum is 38.

The spelling of 30381903803 in words is "thirty billion, three hundred eighty-one million, nine hundred three thousand, eight hundred three".

Divisors: 1 31 127 2531 3049 3937 78461 94519 321437 387223 7717019 9964547 12003913 239227589 980061413 30381903803